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LOCK. No. 880,485. PatentedApr. 8, 1888.

Primes s e s, TIM/81843012 www ff/JM Unirse STATES PATENT Ormes@ JOSEPH PAILLET, OF SPRINGFIELD, OHIO, ASSIGNOR OF ONE-HALF TO MARTIN EDIGHOFFER, OF SAME PLACE.

LOCK.

SPECIFICATION forming part of Letters Patent No, 380,455. dated April 3, 1888.

Application filed November 9, i887. Serial No. 251,684. (Model.)

To @ZZ whom, z'z; may concern:

Beit known that I, Josera PAILLET, a citizen of the United States, residing at Spring lield, in the county of Olark and State of Ohio, have invented certain new and useful Improvements in Locks, of which the follow ing is a specification. i

My invention relates to improvements in locks; and the object of my invention is to provide a lock of simple construction, that shall be easy oi' operation and that shall embody an arrangement of operative parts that cannot be easily operated except by the particular key made therefor, so that the possibility of the lock being picked by means of pieces of wire or similar contrivances shall be reduced to the minimum.

My invention consists in the various constructions and combinations of parts hereinafter described, and pointed outin the claims.

In the accompanying drawings, which form a part of this specification, Figure l is a perspective view of a lock embodying my invention. Fig. 2 is a longitudinal sectional view of the same. Fig. 3 is a plan view of the base or supporting plate with the bolt and its op- @rating mechanism thereon. Figs. 4, 5, and 6, respectively, are views of some of the various parts in detail.

Like parts are indicated by similar letters of reference throughout the several views.

In the said drawings, A represents the base or supporting plate, to which the operative parts are attached and on which they are sup ported. rEhe plate A is provided near the rear end thereof'with an opening, B, which forms the key-hole. Immediately over this opening is provided a U shaped frame, C, also provided with an opening for the key and adapted to form a guide and stop therefor. A short distance in front of the opening B there is extended laterally from the plate A, at right angles thereto, a stud, c, on which is journaled a. series of catches or tumblers adapted to be operated by the key inserted through the opening B. Each of the catches or tnmblers of the series marked c c c2 is separated from the next succeeding one by means of a circular disk, the said disks being marked b b bi. The separating-disks are kept from revolving by a piu, d, which passes through the entire series, and is secured in the plate A, and the tnmblers and disks forming the series are all held on the stud by a small nut, af, adapted to screw onto the said stud. The bolt D lies next to the plate A, and is bifurcated at the rear end and adapted to project back on either side of the stud a. Immediately above the bolt D is the bolt-moving tumbler c, which is provided with an arm, ci, having in the end thereof a pin, c5, adapted to project into a cam groove or slot,f, in the bolt D.

The boltmoving tumbler cis provided at the rear end with a notch, c, with which the key, inserted through the opening B, is adapted to engage in such a manner as to revolve the said tumbler on the stud c. The tumblerc is also provided with an opening or notch, c, in the side thereof, adapted to tit over the pin d and permit a limited rotary movement about the said stud a.

It Will be seen that as the key, which is inserted through the opening B, is revolved it will come against the side of the notch c and thus revolve the tumbler c, which, through the medium of the arm c, pin c5, and the carngroove f, Will produce a longitudinal movement ofthe bolt I).

It will be seen that by this construction a very slight movement ofthe tumbler c is necessary to produce a considerable longitudinal movement of the bolt D. It will also be seen that by varying the shape and size of the notch c the key, which will operate the said tumbler c, may be greatly varied.

In order to render the lock less liable to be opened or picked by other devices than the key, or by other keys than by the particular key, I provide the additional tumblers c and c, each of which is constructed with an en tending arm, e and e', provided in the ends, respectively, with pins eL and e, adapted to engage with grooves or notches c" and e5 in the bolt D. These tumblers c and c2 are provided with the notches c and c, similar to those in the bolt-moving tumbler c. These notches are of such a construction and size that as the key is revolved against the boltmoving tumbler c the retaining-pins e2 and e3 will be removed from the notches e* and e5, and

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thus permit the bolt D to move longitudinally. As before stated, the tumblers forming the series are separated one from the other by the disks b, b', and b2. I have shown these disks in the drawings of a plain circular form. By this construction the key will have to be notched out to receive each of the said disks before the key can turn. It will be seen that by varying the thickness of the said disks or by notching them out more or less to correspond with the notches c in the tumblers `the key which will operate the lock may be greatly varied.

In order to insure the operation of the retaining-pins e2 and e3, I have provided springs h and h', adapted to bear against said pins and assist them in their operation against the movement of the said key. These springs may be dispensed with, if desired.

It is obvious that thelock, as above described, may be variously modified, if so desired. Instead of the plate A and the U -shaped frame C, an outer casing may be provided, supporting the working mechanism, the retaining-nut in this case being dispensed with and the operating parts being entirely inclosed.

It will be seen that the lock, as above deseribed,.is simple in its construction, easy of operation, and by the peculiar construction of the tumblers and disks it would be almost impossible to open the lock without the peculiar key designed therefor.

Having thus described my invention, I claim.-

1. The combination,with asupporting-plate, a longitudinally-moving bolt, and a bolt-mov ing tumblerjournaled on a suitable bearing on said supporting-plate, said tumbler being provided with a cam or projection adapted by a partial revolution thereof to produce a longitudinal movementofsaid bolt,ofakeysnpport ing deviceindependent ofsaid tumbler-bearing and located outside the perimeter of and in such relation to said bolt-moving tumbler that a key inserted therein may engage with the notched periphery of Said bolt-moving tumbler and rotate the same, substantially as set forth.

2. The combination, with the supportingplate and the bolt-moving tumbler, one or more retaining catches or tumblers arranged in a series with said bolt-moving tumbler and separated from each other by the stationary disks, of a key-supporting device independent of the tumbler-bearing located Vin close proximity to said tumblers, so that they will be partially rotated by the movement of the op@ erating-key, substantially as set forth.

3. The combination, with the longitudinally-moving bolt D, having a diagonaly slot, f, of a bolt-moving tumbler, c, having a cam projection adapted to engage with said "slot, and a notched periphery adapted 'to be engaged by the operating-key, a guiding-pin for said bolt, and a key-supporting device independent of the tumbler bearing or support and located outside of the perimeter of said tumbler, substantially as and for the purpose set forth.

4. The combination, with the supportingyplate and the laterally-projecting stud, of the longitudinally-moving bolt and the bolt-Inoving tumbler, the retaining catches or tumblers arranged in series with said bolt-moving tumbler, the stationary disks between said tumblers, and the springs adapted to bear against the retaining catches or tumblers, the tumblers being adapted to be engaged by the operating-key, substantially as set forth.

5. lThe combination, with the longitudinally-moving bolt bifurcated at the rear and extended on either side of' a tumblersup porting stud, of a guiding-pin projectinginto a longitudinal slot in said bolt, a transverse slot,f, in said bolt, adapted to be engaged by a cam projection on a moving tumbler journaled on said stud, retaining catches or tumblers arranged in a series above said bolt-moving tumblers and separated from each other by stationary disks, said tumblers being pro vided with notched peripheries of Avarying shape adapted to be engaged by the operatingkey, and a key-supporting device independent of said tumblers and outside the perimeter thereof, substantially as and for the purpose set forth.

6. The combination, with the supportingplate, of a longitudinally-moving bolt bifurcated at the rear and extended on either side of the tumbler-supporting stud, a longitudinal guidingslot, and a transverse operating slot in said bolt, a bolt-moving tumbler journaled on said supporting-stud and having a cam projection adapted to engage in the op ICO eratingslot, a series of alternating moving tumblers and stationary disks arranged on said stud above said bolt-moving tumbler, each of vsaid tu mblers being provided with a notched periphery adapted to be engaged by the operating key and provided with projecting arms having pins or projections adapted to engage in suitable notches or grooves in said bolt, and a retaining-pin, d, passing through said series of tumblers and disks and into the longitudinal groove in said bolt to hold the stationary disks against revolution, limit the rotation of said tumblers in either direction, and form a guide for said bolt, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set 'my hand this 3d day of November, A.D. 1887.

JOSEPH PAILLET.

Witnesses:

PAUL A. STALEY, MARTIN EDIGHOFFER.

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